Benjamin f



V(No Model.)

B. F. STAUBER. CONNECTION FOR BED BOTTOM FRAMES.

No. 585,636. Patented June 29,1897.

Zigi

THE NONRIS PYERS C0.. PHDTOJTIYNKLJNASMINGTUN, D. C4

' ing the wire mattress.

NITED STATES PATENT EEicEt BENJAMIN F. STAUBER, OF CHICAGO, ILLINOIS,ASSIGNOR TO JOHN D.- HAGGARD AND HENRY I-I. MARCUSSON, OF SAME PLACE.

CONNECTION FOR BED-BOTTOM FRAIVIES.

SPECIFICATION forming part of Letters Patent No. 585,636, dated J' une29, 18971'.

Application tiled March l5, 1897. Serial No. 627,556. (No model.)

To all whom l? may concern.:

Be it known that I, BENJAMIN F. STAUBEE, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in a Connection or Jointfor Bed-Bottom Frames; and I do hereby declare the following to be afull, clear, and exact description of theinvention, such as will enableothers skilled in the art towhich it appertains to make and use thesame.

This invention relates to an improved device for rigidly securingtogether the meeting corners of bed-bottom frames, and is moreespecially intended for use in connection with metal frames forwoven-wire mattresses.

It has been found in the construction of metal frames that it is a verydifficult matter to so secure the corners together as to retain theoriginal form and prevent the possibility of the frame and Woven webfrom being twisted out of shape. Another objection is that the devicesordinarily employed usuallyl have a projecting bolt or other part whichhas a tendency to catch in and rupture the woven'fabric of the mattressand other merchandise which it is liable to have contact with when thearticle is being handled for storage or shipment.

The object, therefore, of this invention is to obviate the objectionablefeatures found in the ordinary arrangements usually employed in theconstruction of metal mattressframes.

Figure l is a bottom plan of a mattressframe embodying the improvement;Fig. 2, a broken-away vertical section on line 2, Fig. l, looking in thedirection indicated by the arrow; and Fig. 3, a broken-away verticalsection on line 8, Fig. l.

A A represent the side rails, B B the end rails, and B the woven web orfabric form- The side rails are made of pipe and the respective endrails formed from an angle-plate, the ends of the mattress being securedthereto by a keeper-plate C.

The bracket or casting D, forming the corner connections, is of anintegral structure and consists of a socket part a for the reception ofthe respective ends of the side rails, and the companion lugs a a',formed on opposite companion sides, as yshown in Fig. 3. This'bracket-connecting joint is rigidly secured to the vertical part of theend rails by rivets a2 or in any other suitable manner.

The socket part a is not of true cylindrical proportions, but isprovided at one side, Fig. 3, with a swell a3, leaving a space b betweenthe interior surface of the socket and the eX- terior surface of thecylindrical side rails. The thickness of the wall of the socket on theswelled side varies with a gradual taperthat is, grows thicker from theinner to the outer end, as illustrated in Fig. 2.

The respective ends of the side rails are rigidly secured in the socketpart of the connection by a tapering key d, which is convex on one sideand concave on the other and has a wedging action when forced int-oplace and so firmly locks the joining parts together that it isimpossible for them to move from a true fixed position, thus preventingthe wire mattress from being twisted or warped out of shape.

One end of the locking-key CZ is adapted to be bent inwardly on theinside and end of the tubular side rails, as shown at g, Fig. 2, andclenched down flatly, so as to prevent the same from working loose anddropping out.

I claimp 1. In a metal bed-frame, the combination with the side and endrails, of a bracket corner connection, comprising a socket part andlaterally-projecting lugs, the respective ends of the side rails beinginserted in said socket part, and a locking-key, forced in between theends ofthe side rails and socket, substantially as described.

2. A bracket corner connection for metal bed-frames for woven-wiremattresses, comprising a socket part, provided with a swelled portion onone side thereof, and laterally-pra jectinglugs,said swelled portionbeing thicker at one end than at the other with a gradual taper between,substantially as described.

3. In a metal bedframe, the combination with the meeting corners of theside and end rails, of a bracket connection consisting of a socket partand laterallyprojecting attaching-lugs, the socket part having a swelledportion on one side, and adapted toleave a space between the adjacentsurfaces thereof IOO and that of the inserted ends of the side rails,and a locking-key, inserted in said space andv rigidly securing theparts in place, substantiztlly as described.

4. Ina-bed-frarne, the combination with the meeting corners, of abracket, consisting of a socket part and attaching-lugs, said socketpart being provided on one side with@J swelled portion having a taperinginterior surface, and zt tapering locking-key, convex on one side andconcave on the other and adapted to Wedge in between the swelled portionof the socket part and the adjacent surfaces of the inserted ends of theside rails, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

BENJAMIN F. STAUBER.

Witnesses:

L. M. FREEMAN, L. B. COUPLAND.

